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$264+ Cheap flights from Michigan to Porto (OPO)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DTW — OPO
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheap flight deals from Michigan to Porto

Keep the following information in mind while searching for Michigan to Porto flight deals. Data was last updated September 17, 2025.

Round-trip from

$410
(lol.travel)

One-way from

$264
(Booking.com)

Popular in

April

Cheapest in

January

Average price

$985
From Michigan to Porto
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One-way flight from Michigan to Porto
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Highest demand for flights based on searches. 24% potential increase in price ($348 potential increase over avg. RT price).
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Cheapest flight prices on average. 7% potential price decrease ($79 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Michigan to Porto

Cheapest flights from Michigan to Porto
Explore the most affordable flight options available from Michigan to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2025.

This lol.travel deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2712:45 pmORD - OPO
2 stops15h 45mUnited Airlines
Wed 11/1212:35 pmOPO - ORD
1 stop13h 32mUnited Airlines
Deal found 9/14$410
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2910:50 pmORD - OPO
1 stop19h 50mMultiple Airlines
Wed 11/57:20 pmOPO - ORD
1 stop27h 00mMultiple Airlines
Deal found 9/14$425
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/275:45 pmORD - OPO
1 stop17h 15mAmerican Airlines
Wed 11/128:20 amOPO - ORD
1 stop12h 10mAmerican Airlines
Deal found 9/15$446
This lol.travel deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:10 pmORD - OPO
2 stops31h 20mUnited Airlines
Wed 11/512:35 pmOPO - ORD
2 stops17h 08mUnited Airlines
Deal found 9/14$450
This oojo deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:50 pmORD - OPO
1 stop34h 25mSWISS
Tue 12/212:05 pmOPO - ORD
1 stop34h 15mSWISS
Deal found 9/14$453
This United Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:31 pmORD - OPO
1 stop9h 59mUnited Airlines
Tue 11/256:00 amOPO - ORD
1 stop13h 10mUnited Airlines
Deal found 9/13$458
This KAYAK deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:50 pmORD - OPO
1 stop34h 25mSWISS
Mon 11/2412:05 pmOPO - ORD
1 stop34h 15mSWISS
Deal found 9/13$459
This United Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2512:45 pmORD - OPO
2 stops14h 45mUnited Airlines
Tue 12/26:00 amOPO - ORD
1 stop13h 10mUnited Airlines
Deal found 9/15$462
This Air France deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/251:47 pmMDW - OPO
2 stops14h 43mMultiple Airlines
Tue 12/26:05 amOPO - MDW
2 stops17h 55mMultiple Airlines
Deal found 9/15$479
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:40 amMDW - OPO
2 stops17h 50mDelta
Wed 11/1211:15 amOPO - MDW
2 stops18h 17mDelta
Deal found 9/17$492
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:40 amMDW - OPO
2 stops17h 50mDelta
Sun 11/165:00 amOPO - MDW
2 stops19h 08mDelta
Deal found 9/16$542
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:14 pmMDW - OPO
2 stops15h 16mDelta
Sun 12/711:15 amOPO - MDW
2 stops36h 45mDelta
Deal found 9/14$582

Cheapflights Fare Finder

 
Customize your flight search to find flights from Michigan to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
Use the filters below to find and compare flights from Michigan to Porto that are best for you.

Fly from

Michigan

Fly to

Porto

Route

Depart

Return

Price

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 10/27

3:07 pm-9:30 am

1 stop13h 23m

Porto

Wed 11/12

12:35 pm-11:43 pm

2 stops17h 08m

$436

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Wed 11/26

4:20 pm-9:30 am

1 stop11h 10m

Porto

Tue 12/2

6:00 am-1:10 pm

1 stop13h 10m

$450

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 11/17

4:20 pm-9:30 am

1 stop11h 10m

Porto

Thu 11/27

6:00 am-8:05 pm

1 stop20h 05m

$458

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Mon 11/17

3:07 pm-9:30 am

1 stop12h 23m

Porto

Tue 11/25

6:00 am-1:10 pm

1 stop13h 10m

$458

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 11/16

5:31 pm-9:30 am

1 stop9h 59m

Porto

Thu 11/27

6:00 am-1:10 pm

1 stop13h 10m

$458

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Sun 11/16

5:31 pm-9:30 am

1 stop9h 59m

Porto

Wed 11/26

6:00 am-8:05 pm

1 stop20h 05m

$458

ChicagoPorto

ORD - OPO

ORDOPO

Chicago O'Hare Intl

Tue 11/25

12:45 pm-9:30 am

2 stops14h 45m

Porto

Tue 12/2

6:00 am-1:10 pm

1 stop13h 10m

$462

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Tue 11/25

1:47 pm-10:30 am

2 stops14h 43m

Porto

Tue 12/2

6:05 am-6:00 pm

2 stops17h 55m

$479

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Mon 10/27

1:08 pm-10:30 am

2 stops16h 22m

Porto

Wed 11/12

11:15 am-11:32 pm

2 stops18h 17m

$479

ChicagoPorto

MDW - OPO

MDWOPO

Chicago Midway

Wed 11/26

10:47 am-10:30 am

2 stops17h 43m

Porto

Tue 12/2

6:05 am-6:00 pm

2 stops17h 55m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 40 results
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Best time to book a flight from Michigan to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Michigan with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Michigan to Porto

What is the cheapest month to book a flight from Michigan to Porto?

Currently, January is the cheapest month in which you can book a flight from Michigan to Porto (average of $523). Flying from Michigan to Porto in June is currently the most expensive (average of $1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MI to OPO?

Find hourly flight availability from Michigan to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 17, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Michigan to Porto as you normally would.

Related info for your journey

Find useful and relevant information for your journey from Michigan to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Porto from Michigan?

    Porto (OPO) is the airport you will fly into if you book a flight from Michigan to Porto. It is only a 6.8 mi journey from Porto (OPO) to Porto’s city center.

  • How long is the flight from Michigan to Porto?

    A quick flight from Michigan to Porto can take about 13h 23m. United Airlines provides one of the quickest options available for as low as $436. Airlines will cover a distance of 3931 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Michigan to Porto one-way?

    One-way options have recently been found by users for as low as $264 on TAP AIR PORTUGAL. Other airlines that offer cheap prices include KLM from $408 and Delta from $434 one-way.

  • What are the most popular routes from Michigan to Porto?

    While some choose either Chicago Midway - Porto or Grand Rapids Gerald R. Ford Intl - Porto, Chicago O'Hare Intl - Porto is the most popular route from Michigan to Porto.

  • Can I find deals for flights from Michigan to Porto that include hotel bookings?

    Yes. In addition to deals on Michigan to Porto flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Michigan to Porto?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Michigan to Porto.

  • Can I find deals for business class flights from Michigan to Porto?

    Yes. Cheapflights offers flight deals from Michigan to Porto by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Michigan to Porto?

    Currently, January is the cheapest month in which you can book a flight from Michigan to Porto (average of $523). Flying from Michigan to Porto in June is currently the most expensive (average of $1,027). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Aveiro
Arcos de Valdevez
Coimbra

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Alternative routes for Michigan to Porto

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Michigan to Porto

Discover the top 3 airlines that operate flights from Michigan to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$441Average$1,205FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$568Average$985FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$739Average$1,064FlexibilityNo cancel feeOn-time69%

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